Improvement in water-heaters



Patented Oct. 4, 1870.

Water Heater.

J; & T', RAISBE'OK.

133mm dtiijiire Janus unrsBEoKi AND THOMAS a. uA1sBnoK,or NEW YORK, N}. r.

Letters Patent No. 168,050, dated October 4, 1870.

IMPROVEMENT IN WATER-HEATERS.

AS A. RAISBECK, both of the city,connty,' and fitate of New'Yor-k, have invented a new and improved Watcr-Heateryandwe dohereby declare the following to be afull, clear, and exact description thereof, which will enable those skilled in the art to inake and use the same, reference being had to the, accornpanyiug drawing forming part of this specification, in which drawingj Figure 1 represeuts a vertical section of this invention. i

Figure 2 is1 a horizontal section of the same.

' Figure 3 isatransversc section of the heatingpipe. 1 Similar letters, indicate corresponding parts. This invention relates to a water-heater, which is intendedparticularly for hot-houses, and which 'consists essentially of an hexagonal j aoketor drum, which is provided in its interior with a fire-place, and with a series of hexagonal or sq nare fire-fines passing through a water-space, tbrmedbetween the horizontal sheets in the drum, in such a manner that, by giving to said fire-fines an hexagonal orwsquare cross-section, they can 'be arranged in .suchrelatiori to each other that. the intervening water-spaces are of uniform width throughout, and, consequently, the heat is uniformly distributed throughout the entiremass of water, and

thefire-flues are protected ou all sides by a body of water, of uniform thickness.

Over the fire-fines is placed a water-crown, which communicates with the waterrspaces surrounding said fireflues bymeans of two or more passages, and from which emanates a pipe, which, after having passed tl rrongh the entiregreeu-honse or otherfspace to be heated, is returned 't'ofthe' bottom part of the main drum in such a manner tint a continuous circulation ofiwater takes place'throug'h the heater, andthat said heater canbekeptjn operation for a long time, without requiring much attention.

The heating-pipe is corrugated, so as to increase its heating-surface, as compared with the quantity of hot water passing through it, and, also to form a continuous water-pan between itscorrugations', so that,

in case the air becomes too dry, the requisite amountof moisture can be supplied by. filling said water-pan withwater.

' In the drawing- The letterA designates a drum or jacket, which is made hexagonal, as shown in fig. 2 of the drawing,

andthelower part of which forms a fire-chamber, B,

which is surrounded by the water-space C.

The heated gases and products of combustion which which are secured in horizontal sheets E, (see fig. 1,)

or which, by preference, are cast in one piece. fitting the'inner space of the drum or jacket.

'Said fines are hexagonal or square, (see fig. 2,) so that the water-spaces formed between them are of uniform width throughout, whereby a uniform diffusion of heat through the entire body of water is insured. This purpose can only be 'efi'ected by making the fines hexagonal or square, sinceflues of any other form can not be arranged in such relation to each other that the intervening spaces are of uniform width throughout. a

-'Aiter having passed. through the fire-flues,.the pro ducts of combustion escape into the smoke-box F, whence they pass. out through the escape-flue G.

In the smoke-box is placeda watencrown, H, which communicates with the water-space below, through two or more pipes, a, and from this water-crown extends a pipe,-I, which passes through the green-house orot-her space, and returns to the jacket A, connecting with the same at J, as seen in fig. 1.

v This pipe is, by preference made cross-shaped or oorrugated, as shown in fig. 3, so that it oflers a large heating-surface to the surrounding air, and, furthermorc, if the air becomes dry, water can be poured in the corrugations of said pipe, and, by the evaporation of this water the requisite amount of moistureis supplied. r v

When'the water in the crown is heated, it, escapes through the pipe. I, aud returns to the lower part of the heater, and thereby a continuous circulation is kept up, and the samewater is used over and over again, to heat the greeu-house,.or other space.

What we claini as new, and desire to secure by Let- 'terslatent, isr 1. The hexagon jacket A, inolosing a water-space, and a series of fire-fines, and a water-crown, substan-' tially as described. 1

, 2. The top and bottom sheets'E E, and fines D D, incombinatiou with the surrounding water-space O,

smoke-box F water-crown H hca'tiu he I arides- E. F. .KASTENHUBER. 

